It appears there’s a predator for the Emerald Ash Borer and while it’s not commercially available yet – you should keep your eyes out for this one (I sure will)
Here’s the bottom line on what this tiny wasp does.
A recent 7-year field study conducted by scientists from the Agricultural Research Service (Jian Duan), the Forest Service (Leah Bauer and Mike Ulyshen), and the University of Massachusetts (Roy van Driesche and Kris Abell) showed that the T. planipennisi released between 2007 and 2010 in central Michigan spread quickly and contributed to a significant reduction in EAB population growth. T. planipennisi parasitizes EAB larvae by drilling through the bark and laying eggs on its host.
The research team observed a 90-percent decline in live EAB larvae in infested ash trees at both parasitoid-release plots and control plots. According to Duan, 7 years’ worth of field data demonstrated that the decline in EAB larvae was correlated with significant increases in EAB larval parasitism, first by native parasitoids, then by T. planipennisi.